A traditional Japanese martial art that builds confidence, awareness, coordination, and calm in a welcoming, non-competitive environment. No previous martial arts experience is required.







A traditional Japanese martial art that builds confidence, awareness, coordination, and calm in a welcoming, non-competitive environment. No previous martial arts experience is required.











Aikido is about harmony, not rivalry. We focus on movement, balance, and awareness, helping you respond to conflict without relying on brute strength.

Improve coordination, balance, and body awareness through natural movement.

Develop focus, confidence, and calm that extends beyond the dojo.

Cooperative training builds respect, leadership, and a strong community.

You don't need to be strong, flexible, athletic, or experienced to begin. Our classes meet you where you are, and our instructors will guide you every step of the way at a pace that feels comfortable and achievable.

Fill out the quick form above. We'll reach out to confirm your visit and answer any questions you have.

We'll match you with the best class time for your schedule and experience level.

Come as you are. We'll take care of the rest and welcome you to the dojo.

Aaron Cass, Chief Instructor
5th-Degree Black Belt
Chief Instructor since 2009
Training experience in the U.S. and Japan
Portsmouth Aikido has been serving the Seacoast community for nearly 30 years, helping students of all ages grow stronger, more confident, and more centered.
Our dojo is a place of connection, personal growth, and mutual support. Here, we train together, learn together, and encourage each other both on and off the mat.






Claim your free trial class today and take the first step toward balance, confidence, and a stronger you.
© 2026 Portsmouth Aikido. All rights reserved.